21320547

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1\times {\mathrm{797}}^1$

素因数の和:1078

約数の個数: 16

約数和(自身を含む): 29353632

約数和(自身を除く): 8033085

約数列:

[1, 3, 37, 111, 241, 723, 797, 2391, 8917, 26751, 29489, 88467, 192077, 576231, 7106849, 21320547]

約数ペア:

[(1, 21320547), (3, 7106849), (37, 576231), (111, 192077), (241, 88467), (723, 29489), (797, 26751), (2391, 8917)]